Stephen Mayhugh Email & Phone Number

Durango, Co, Us

Centennial, Co, Us

Centaur V Upgrades

Arlington, Va, Us

- Responsible Engineering Authority for long life missile sensor cryogenic cooling fluid systems operating within atmospheric and space environments- Subject Matter Expert for executing experimental fast cool down testing of cryogenic system. This included: - Design and assembly of test station consisting of multiple gas species, high pressure tubing, fittings, regulators, valves, pressure vessels, vacuum pumps, thermal chambers, dewars, cryocoolers, data acquisition, instrumentation, and cryogenic liquid handling. Common use among multiple JT cryogenic systems - Development and execution of test plan, procedure, graphical user interface and relay control output using LabVIEW and analysis, calibration, noise filtering software using MATLAB- Design of engineering hardware and release/revision of drawings IAW ASME Y14.5 and Y14.100 using PTC Creo and Common PDM. Application of GD&T, tolerance analysis, structural/thermal analysis, seal efficacy and pressure vessel life analysis, trade studies, prototyping, and testing. Implementation of design for manufacturing and assembly to reduce fabrication and assembly cost and defect occurrence.- Performed root cause corrective action investigation relating to test failures and manufacturing defects of Joule-Thomson cryocoolers, detectors, dewars, pressure vessels, valves, low explosive devices, seals, weldments, brazements, and other high pressure and cleanliness fluid system components. Met critical program deadlines through Material Review Board process, creation of engineering changes and variances, implementation of supplier process changes, and improvements to existing designs.- Lead and mentored junior engineers through management of project task milestones and engineering support to meet critical program need dates

Dulles, Virginia, Us

- Developed and lead/managed multidisciplinary system/subsystem level requirements of missile target vehicle interfaces, specifications, and verification/validation thereof using IBM Rational Doors- Acquired new business/contracts through proposal development support including customer requirement technical volume development- Presented technical content to government customer at major milestone Systems Requirements Review (SRR)- Analyzed flight and mission simulation testing telemetry data, including vehicle integration support, using MATLAB in a Linux environment (RHEL)- Developed mission timeline and respective requirements

Chantilly, Virginia, Us

- Provided modeling and analysis support to government development of next-generation directed energy weapon and LIDAR systems- Developed specialized analytic tools to characterize the performance of high-efficiency lasers integrated onto high altitude, low-Mach UAV platforms using MATLAB. This included: - Modeling laser point-ahead geometries (to compensate for laser time of flight effects on distant targets) - A refined optical cross section model that accounts for self-shadowing on complex threat object shapes and potential bistatic sun-illumination determined by orbital mechanics - Identification and analysis of problems with previous optical models and production of accurate, short run-time solutions - Analysis of specific mission scenarios and modeling of flight stages tailored to aircraft performance characteristics